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New nerve block could cut opioid use after breast cancer surgery

NCT ID NCT07579650

Symptom relief Sponsor: Saglik Bilimleri Universitesi Gazi Yasargil Training and Research Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Sep 02, 2026 · Updated 4 times

Summary

This study tests whether a specific nerve block (SPSIP block) can reduce pain and the need for strong painkillers after mastectomy and lymph node removal. About 50 women with breast cancer will receive either the nerve block or a placebo before surgery. The goal is to improve recovery and reduce opioid use.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 50 people

The number the study aims to enrol. It can still change while the study runs.

Started

May 2026

Expected to finish

Sep 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 65 years

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Female patients aged 18-65 years * ASA physical status I-III * Scheduled for elective unilateral mastectomy with axillary lymph node dissection under general anesthesia * Able to understand and use the Numeric Rating Scale (NRS) for pain assessment * Provided written informed consent Exclusion Criteria: * Known allergy or hypersensitivity to local anesthetics (e.g., bupivacaine) * Coagulopathy, thrombocytopenia (\<100,000/mm³), or ongoing anticoagulant/antiplatelet therapy that cannot be discontinued * Infection or skin lesion at the injection site * Planned bilateral surgery or additional major surgical procedures * Chronic pain conditions or regular use of opioids, gabapentinoids, or centrally acting analgesics * Neurological or psychiatric conditions interfering with pain assessment * History of previous major thoracic or chest wall surgery on the same side * Pregnancy or breastfeeding * Refusal to participate or inability to provide informed consent

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Breast cancer

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Fatma Acil

    RECRUITING

    Diyarbakır, Outside of the US, 21070, Turkey (Türkiye)

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